Hose-coupling



(No Model.) 7

G. M. GERHAUSBR.

HOS-E COUPLING.

Patented June 26, 1883.

UNirEn ST TES PATENT @mucn GEORG GERHAUSER, or BALTIMORE, MARYLAND.

HOSE-COUPLING.

SPECIFICATION forming part of Letters Patent No. 280,169, dated June 26,1883.

Application filed February 17, 1883.

Be it known that I, GEORGE MARTIN HAUsER, a citizen of the UnitedStates, residing at Baltimore city, in the State oflWIaryland, haveinvented new and useful Improvements in Hose-Couplings, of which thefollowing is a specification. v

My improvements relate to means for securing the couplings of flexiblehose, for the purpose of making a continuous tube to conduct Water,steam, or air under pressure. Such couplings are well known to thoseskilled in the art. 4

My object is to prevent the flexible hose from being forced off from thecoupling, either by reason of great pressure in conducting water, or bythe action of heat and pressure in conducting steam. As'now commonlyused, the extension-tubes of the male and female couplings are confinedand held within the flexible hose by sectional ring-clamps around thehose,binding the latter upon the threaded tubes; but these ring-clamps,having no con nection with the couplings proper, have often failed toperform their office. I am aware that the coupling proper anc the clamphave been proposed to be made in a single casting with rigid armsconnecting them; but while this aims to accomplish my object it is notat all a similar. construction,

and does not possess the advantages of mine,

as I shall hereinaftenset forth.

The object of my particular improvements is to connect the couplingproper with the clamp by simple mechanical means, which are hereinafterset forth and claimed, with reference to the accompanying drawings, inwhich- Figure l is a view in perspective, showing two joined sections offlexible hose; Fig. 2, a longitudinal section; Fig. 3, a detail of thefemale coupling proper; Fig. 4, a detail of the male coupling proper;and Fig. 5, an end view, showing the ring grooves or cuts adapted tobite into the gasket-ring in the female coupling, and thus make aperfectly'air-tight joint. Those skilled in the art will readily see theadaptation of my improvements to the common method of coupling hose nowin use.

p In the drawings, A is the union of the female coupling, which has theextension-tube B, for

(No model.)

insertion into the hose, as usual; but it differs from the ordinarycoupling, in that it is cast with a ring-groove, a, or shoulder. Thisringgroove is for the purpose of loosely holding a sectional ring of twoparts, I) I), joined by bolts 0 c, to form pivots for arms (I (l, whichconnect with the sectional ring-clamps O C, by having their eyed ends 6c interposed between the eyed ends of the clamps, and fastened by thebolts f f, as shown. The sectional ring b I) might be held by a shoulderor equivalent device, but always in such manner as to permit the femaleband A of the union to make the connection by being turned with aspanner in the well-known manner. The connection of the hose-clamps Owith the male coupling B is analogous, and only differs out of thenecessity of construction. I11 this male coupling, lugs g 9 project fromopposite points cast therewith, to receive the arms (I d, which areconnectedto the clamps O, as before described. Also, in this case, thehose itself must be cut out to receive the lugs g, and fit up to theshoulder-collar i of the coupling.

I do not depart in any manner from the ordinary construction ofhose-coupling now in use, and as the drawings show, except in so far asstated-that is to say, my coupling can be used with the ordinarysectional ring-clamps now in use.

As shown in Figs. 2 and 5, the end face of tional ring and to the clampG for the hose,

substantially as specified.

2. The combination of the clamps G G, the coupling-union A, having thering-groove a, the sectional ring I) I), and arms (I d, hinged todescribed, for the purpose said ring, as set forth, and connecting with]oted arms d (1, adapted for connection over said clamp substantially inthe manner described.

3. The male coupling having lugs g g, in

5 combination with the arms (I d, pivoted therein and the clamps O G,substantially as and for the purpose set forth.

4. In ahose-coupling, the combination, with I the clamps O O, of thefemale coupling A and I0 the male coupling B, each provided with pivthehose with said clamps,-substantially as and for the purpose set forth.

In testimony whereof I have hereunto set my hand in the presence of twosubscribing I 5 witnesses.

' GEO. MARTIN GERHAUSER.

\Vitnesses:

A. E. H. J oHNsoN, J. W. HAMILTON JOHNSON.

